Dough molding machine



'Nov. 25, 1952 F. F. FOX 2,519,048

oouca MOLDING MACHINE Filed Nov. 26, 1948 4 Sheets-Sheet 1 FIG. I.

Nov. 25, 1952 F. F. FOX

DOUGH MOLDING MACHINE 4 Sheets-Sheet 2 Filed Nov. 26, 1948 Nov. 25, 1952 F. F. FOX 2,619,048

DOUGH MOLDING MACHINE Filed Nov. 26, 1948 4 Sheets-Sheetfi FIG. 3.

Nov. 25, 1952 F. F. FOX ,048

DOUGH MOLDING MACHINE Filed NOV. 26, 1948 4 Sheets-Sheet 4 FIG. 5.

Patented Nov. 25, 1952 UNITED STATES T OFFICE Application November 26, 1948, Serial No. 61,945 In Great Britain November 27, 1947 The invention relates :to .a dough moulding :machine, for example for Viennese, French and .fancy bread, such as crescents, sticks, strings,

twins, salt sticks,cannons, knots, poppy seed and brioche crescents, and has the main object of providing an improved arrangement of sheeting rollers therefor.

nnderstoodan embodiment thereof will now be described byway of example and with reference :to the accompanying drawings of which:

Fig.1 isan elevation .in cross section through thezmouldingmachinetakenon line II of Fig. 5.

.Figs. la-and .2 are elevations, partly in section on the linesIaFfIa and II-II of Figs. 4 and 3, respectively.

Figs. 3 and 4 are elevations, partly in section at right angles to Fig. -l of the two ends of the moulding machine.

Fig. is a plan view, partly in section, of a detail of the moulding machine.

In the stationary frame I (Fig. 1) a first pair of sheeting rollers 2, 3 of approximately equal diameter is pivoted in a manner permitting the adjustment .of the gap between them. This is effected fin the present embodiment by journalling the lower roller 2 directly in the frame I,

while journalling the upper roller 3 in an eccentric 4 pivoted "in the frame I (Figs. 1a and 4). Thi eccentric 4 has, outside the frame I, spur teeth 4a in mesh with a toothed sector 5 which is keyed or pinned to a shaft 6a together with a worm wheel 6. The 'latter'is'inzmesh with "aworm Twhi'ch can be turned by 'mean's'of a hand wheel 'orhandle In (Fig. 1a).

"The shaft 6a extends across the frame 1 and carries another toothed sector 6?) outside the frame I operating a symmetrical arrangement of eccentric for the other journal of the roller 3 (Fig. 2)

Behind the first pair of sheeting rollers 2, 3 and slightly below there is a second pair of sheeting rollers 8, 9 (Fig. 1), of which the upper roller 8 is of approximately the same diameter as the 1 Claim. (Cl. 10'7--i12) rollers of the first pair. This roller 8, too, is journalled in an eccentric l0 (Fig. 'la) having spur gear teeth l'ta which mesh with an idler pinion H, in turn in mesh with the spur teeth to. Consequently the eccentrics iii are turned together with the eccentrics l of the roller '3, which results in an adjustment of the position of the roller 8 being effected simultaneously with that of roller 3.

The lower roller 9 of the second pair is of substantially larger diameter than the rollers 2 ,3 and 8 and is in fact designed as a drum. This roller is again journalled in theframe l directly, i. e. without adjustability with the axles 9a, to (Figs. 3 and 4, respectively). The axle 9a carries a'big spur gear wheel l2 which is in mesh with the spur pinion E3 of the driving shaft M on which a belt pulley or the like (not shown) is keyed to "be driven from an electromotor or the like. The other axle 3b (Fig. 4) carries a triple sprocket wheel 15 from which various chain drives are derived, as will be explained later.

On the driving shaft M (Fig. 3) there are also two sprocket wheels Ma and Mb for chain drives a and iEb (Figs. 2 and 3) both tensioned by 'theiplain jockey wheels Ila and Nb respectively,

both pivoted on the rocking arm 11. Chain drive ltd drives the sprocket wheel 8a of the upper inner roller v8, and chain lfib drives the sprocket wheel 3a of the upper outer roller 3. The rocker lever I! 'is biased by the spring I'lc (Fig. 2).

The outside of the frame I is covered on both ends by covers it (Fig. 4) and [9a, 5%, of which is and the upper part lflb are quickly detachable by means of knurled screws 29 (Fig. 3) ,while the lower part iBa journals the driving shaft it.

As'will be clear from the chain vdrive diagram and .themeshing of the spur gears i2, it in Figs.

2,3the1two upper rollers 8 rotate in the same direction though at a different speed, while the lower roller or drum :9 rotates in the opposite direction.

From one :of the sprocket wheels kid, of the triple sprocketwheel !5 (Fig. 4.), a chain drive 44 runs to the sprocket wheel 2a (Fig. 1a) of the lower 0111781'1201181 2 and driving the latter accordingly the opposite sense of rotation to the upper roller 3.

Accordingly, the rollers 2, 3, 8, 9 move all in the same circumferential direction at their respective gaps, and will move any piece of dough fed between the outer rollers 2, 3 to the right hand side in Fig. 1, i. e. towards the two belts to be described in what follows.

The lower belt 2| (Fig. 1) runs over a lower drum 22, an upper roller 23 and the rounded inner edge 24a of a plate 24 sloping towards the delivery end of the moulding machine. It runs very near the surface of the lower inner roller 9 and in the same sense of rotation, i. e. clockwise in Fig. 1, any dough delivered from the inner pair of rollers 8, 9 being taken over from them by belt 2| .near the rounded edge 24a and carried down towards the stationary delivery plate 25.

The lower drum 22 is journalled at the end of an arm 26 pivoted in frame I on a stub shaft 21 that carries the segmented hand lever 21a. The latter can be adjusted by means of the grip 21b and clamped to the frame I by a wing nut 28 (Fig. 2). Thus the position of the roller 22 can be adjusted and fixed in any appropriate manner. The lower drum 22 is driven by a chain 29 running over the sprocket wheels |b (Fig. 4)

and 22a, 1. e. in the same sense of rotation as the lower roller 9 of the inner pair. The chain 29 is tensioned by a jockey wheel 22?) (Fig. 1a).

The upper belt 30 runs in the same sense of rotation as the lower belt 2| and consequently the portions facing one another run in opposite directions as indicated in Fig. 1 by the arrows. Accordingly any piece of dough, pinned out previously in two successive stages by the pairs of rollers 2, 3 and 8, 9 that travels down the lower belt 2| is rolled upon itself by the upper belt 38 so as to form a stick etc. that can subsequently be formed into a crescent, if desired.

The upper belt 39 runs in a separat unit which is tiltable with respect to the lower belt 2| so as to allow an adjustment of the gap between the two opposing portions of the two belts. The upper belt 39 runs over a rear roller or drum 3| which is journalled with its axles 3 la. in the main frame (Figs. 1a and 5) The left axle carries a sprocket wheel 3|c which is driven by a chain 32 from th sprocket wheel I50 on the shaft 91) of the roller 9 by means of a chain 32 which is tensioned by a jockey wheel 32a. The right hand end of the axle 31a carries a sprocket wheel 3|b which will be described later. The chain 32 drives the roller 3| in the same sense of rotation as roller 9 i. e. in the appropriate direction to caus the running of the belt 3| as described hereabove.

A frame 34 is pivoted co-axially with the roller 3| (Figs. 1a and 5) and carries at its front end a thin roller 33 journalled in ball bearings 33a; this thin roller 33 is protected against deflection due to the pull of the belt 30 by smooth halfbean'ngs 35b attached to a cross bar 330 of the frame 34.

Two rollers 35a and 35b are journalled on a double eccentric 35, and the belt 30 runs between them, so that by turning the eccentric 35 by means of a worm wheel 35c engaged by a worm 35d the tension of the belt 30 can be adjusted by means of a knurled knob 35a.

An arm 36 in the shape of a bell crank lever is rigidly connected with the frame 34 (Figs. 1 and 5). The upper arm 36a thereof carries an adjustable counterpoise 3617 which can be clamped to it by means of a knurled screw 360. The lower arm 3611 has an elongated slot 36a '4 which is engaged by an eccentric cross member 31 pivoted in the main fram I at 31a. This eccentric member can be turned by means of a handle 31b, and fixed in any position by means of the clamp 310 (Fig. 5). Thereby the position of the frame 34, and accordingly that of the upper belt 30, with respect to the lower belt 2|, can be adjusted, the counterpoise 36b allowing the centre of gravity of the whole unit of frame 34 to be brought into the desired position with respect to the axis of the drum 3|, about which the said unit is pivoted.

From the sprocket wheel 3 ID at the right hand end of the roller 3| (Fig. 5) a chain 38 runs to a sprocket wheel 39 driving a rotary brush 4!), eccentrically arranged in the flour compartment 4| (Fig. 1) so as to sprinkle flour continuously on the belt 39 through a slot Ma in the bottom of the said compartment, and thus to prevent the dough from sticking to the belts 30 and 2|.

The sticking of dough to the rollers 2, 3, 8 and 9 is prevented by scrapers 42 pivoted in the main frame I and biased against the respective rollers by springs 42a. The tension of the belt 2| can be adjusted by a tensioning device 43, operated by a knurled screw knob 43a (Fig. 1).

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

What I claim as my invention and desire to secure by Letters Patent, is:

In a dough moulding machine, a control member, a worm connected with the said control member, :a worm wheel in mesh with the said worm, a toothed gear member connected with the said Worm wheel, a crank member, a toothed gear member connected to the said crank member and in mesh with the first mentioned gear member, a second crank member, gearing means arranged for gearing the said two crank members together for simultaneous rotation in the same direction, and journalling means eccentrically arranged on each of the said crank members for journalling one of a pair of sheeting rollers in each of the said crank members.

FRED FRANK FOX.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,355,908 Petri Oct. 19, 1920 1,519,569 Vicars Dec. 16, 1924 1,781,546 Harber Nov. 11, 1930 1,800,415 Van Houten Apr. 14, 1931 FOREIGN PATENTS Number Country Date 171,526 Great Britain Nov. 24, 1921 308,666 Italy June 1 1933 327,812 Italy July 19, 1935 379,465 Italy Mar. 28, 1940 443,335 Germany Apr. 26, 1927 605,416 France Feb. 16, 1926 

